PotashCorp faced weaker fourth-quarter 2012 earnings due to the late-season slowdown in global fertilizer nutrients, especially in phosphate and potash. Net income fell 38% year-on-year (YOY), to $421 million. Earnings per share (EPS) of 48 cts/share were below analyst estimates of 58 cts/share, according to Thomson Reuters (New York). Sales fell 12%, to $1.64 billion. Fourth-quarter results for the company include a $41 million provision for the settlement of antitrust claims from potash buyers in the United States announced this week—although...